Email domain report
Lockheed Martin email format (lmco.com): verification & catch-all status
As of November 6, 2026, the most common lmco.com email format is [email protected], used by 55–68% of the at least 50 distinct lmco.com addresses mailfloss verified in the 90 days to November 6, 2026. In mailfloss's checks (latest November 3, 2026), lmco.com mostly rejected addresses that do not exist, so it is not a catch-all domain. 61–69% of mailfloss's lmco.com verifications in the 90 days to November 6, 2026 were accepted.
One address at a time, right on this page · counts rounded
- Most common format
first.m.last@- 55–68% of distinct addresses
- Catch-all
- No
- mostly rejects unknown mailboxes · checked November 3, 2026
- Mail routed through
mailfi02.lmco.com- Accepted on verification
- 61–69%
- of verifications, 90 days to November 6, 2026
Verification results
How lmco.com responds to email verification
How lmco.com answered when mailfloss verified its addresses in the 90 days to November 6, 2026, most recently on November 5, 2026.
Most common lmco.com email formats
| Format | What it means | Share | 95% range | Addresses |
|---|---|---|---|---|
[email protected] | First name, middle initial, last name (dot-separated) | 55–68% | 41–80% | 30+ |
[email protected] | First name, dot, last name | 37–48% | 25–62% | 20+ |
Shares are of the 50+ distinct lmco.com addresses mailfloss verified in the 90 days to November 6, 2026. A range shows where a share can sit given the addresses behind it. Uncommon formats are combined, and the words in each format are placeholders, never real names.
SMTP responses from lmco.com
| Response | What it means | Share of listed responses |
|---|---|---|
250 | Mailbox accepted the addressDeliverable | 67–75% |
550 5.1.1 | Mailbox does not existUndeliverable | 27–32% |
Only answers about the mailbox itself are listed.
Catch-all
No, mostly rejects unknown mailboxes
Last checked November 3, 2026
DNS, checked November 5, 2026
MX mailfi02.lmco.com
SPF published · DMARC published
Free check
Verify an address at lmco.com
Type the part before the @. mailfloss asks the lmco.com mail server about that address and tells you in seconds what it answered: the same verification behind the results on this page.
Any other domain works too: type a full address. The result appears under the box; nothing you type is stored on this page.
Questions about lmco.com
Lockheed Martin email questions, answered from this data
Every answer comes from the numbers on this page, 90 days to November 6, 2026.
What email domain does Lockheed Martin use?
lmco.com. Its MX record points to mailfi02.lmco.com, with SPF published and DMARC published, checked November 5, 2026.
What is the most common lmco.com email format?
[email protected]: 55–68% (95% range 41–80%) of the 50+ distinct lmco.com addresses mailfloss verified in the 90 days to November 6, 2026. Next: [email protected] at 37–48%.
Is lmco.com a catch-all domain?
No. In mailfloss's checks (latest November 3, 2026), lmco.com mostly rejected addresses that do not exist, so it is not a catch-all domain. Because lmco.com mostly rejects mailboxes that do not exist, a permanent (5xx) "mailbox does not exist" or "account disabled" answer from it is reliable, and those addresses can come off your list; a 4xx answer is temporary, so retry it. An accepted answer is strong but not certain evidence that the mailbox exists. A full inbox or a busy mailbox is temporary, so recheck those later.
Do lmco.com addresses bounce?
Of mailfloss's lmco.com verifications in the 90 days to November 6, 2026, 61–69% were accepted, 24–29% were rejected and 7–11% got no clear answer.
How do I find or check an email address at lmco.com?
Build it from the person's name in the most common format, [email protected], then verify it before you send: mailfloss asks the lmco.com mail server about that exact address and reports what it answered. Because lmco.com is not a catch-all domain, a clear answer means what it says. Verify one now.
Typo Fixer · company domains
A subscriber who typed lmoc.com is still a customer of Lockheed Martin.
Most verifiers mark lmoc.com invalid and delete the subscriber. mailfloss's Typo Fixer suggests lmco.com instead, checks whether that mailbox exists, and queues the fix for you to approve. Nothing changes behind your back.
On your signup form
Example: a subscriber types first.m.last@lmoc.com; Typo Fixer suggests first.m.last@lmco.com and queues it for your approval.
Other domains mailfloss reports on
All domains| Domain | Most common format | Accepted on verification | Catch-all |
|---|---|---|---|
| mayo.eduMayo Clinic | [email protected]97% of addresses | 96% | catch-all: No |
| morganstanley.comMorgan Stanley | [email protected]81–89% of addresses | 55–59% | catch-all: No |
| mountsinai.orgMount Sinai | [email protected]94% of addresses | 80% | catch-all: No |
| northwestern.eduNorthwestern University | [email protected]40–45% of addresses | 85–88% | catch-all: No |
| orlen.plORLEN | [email protected]87–95% of addresses | 82–86% | catch-all: No |
| roche.comRoche | [email protected]85–88% of addresses | 73–76% | catch-all: No |
One check is a start. Keep every address on your list deliverable.
mailfloss runs this verification on your whole list, inside your email platform, and keeps running it as addresses change. Product teams and AI agents get the same checks from the API.
Every number here comes from verifications mailfloss ran for its customers in the 90 days to November 6, 2026. Pages show rounded aggregates only: no email addresses, names or single results. Read how mailfloss measures email formats and catch-all status.
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